Novel layered solid oxide fuel cells with multiple-twinned Ni0.8Co0.2 nanoparticles: the key to thermally independent CO2 utilization and power-chemical cogeneration

Hua, Bin; Yan, Ning; Li, Meng; Zhang, Yaqian; Sun, Yanping; Li, Jian; Etsell, Thomas H.; Sarkar, Partha; Chuang, Karl T.; Luo, Jing‐Li

doi:10.1039/c5ee03017j

Cited by 117 publications

(56 citation statements)

References 43 publications

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“…[52][53][54] Compared with hydrogen, methane is more preferable as a fuel because it is abundant in nature. For example, it is the main component of natural gas, coal-bed gas and biogas.…”

Section: Resultsmentioning

confidence: 99%

Tuning layer-structured La_0.6Sr_1.4MnO_4+δ into a promising electrode for intermediate-temperature symmetrical solid oxide fuel cells through surface modification

et al. 2016

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A K 2 NiF 4 -type layer-structured oxide, La 0.6 Sr 1.4 MnO 4+d (LSMO 4 ), is tuned into a potential electrode for intermediate-temperature symmetrical solid oxide fuel cells (IT-SSOFCs) through surface modification.Bulk-phase LSMO 4 shows high chemical stability under both oxidizing and reducing atmospheres and good thermo-mechanical compatibility with the Sm 0.2 Ce 0.8 O 1.9 (SDC) electrolyte; however, it exhibits insufficient electro-catalytic activity for both the oxygen reduction reaction (ORR) and oxidation of fuels. Surface modification through infiltration is applied to improve the electro-catalytic activity of the LSMO 4 -based electrode; both SDC and NiO are explored. The co-modification of the LSMO 4 electrode with SDC and NiO is found to provide the best performance. In particular, LSMO 4 -SDC-NiO shows the highest cathodic performance with an area specific resistance (ASR) of only 0.17 U cm 2 at 700 C. Under optimized conditions, a maximum power density of 614 mW cm À2 at 800 C is achieved for an electrolyte-supported symmetrical SOFC with surface modified LSMO 4 -based electrodes operating with hydrogen, and a 378 mW cm À2 maximum power output is still achieved at 800 C when methane is applied as the fuel. The symmetrical cell also shows good operational stability with both hydrogen and methane fuels. Through proper surface modification based on the infiltration method, the results demonstrate that LSMO 4 can be developed into favorable electrodes for IT-SSOFCs, which are capable of operating with both hydrogen and hydrocarbon fuels.

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“…[52][53][54] Compared with hydrogen, methane is more preferable as a fuel because it is abundant in nature. For example, it is the main component of natural gas, coal-bed gas and biogas.…”

Section: Resultsmentioning

confidence: 99%

Tuning layer-structured La_0.6Sr_1.4MnO_4+δ into a promising electrode for intermediate-temperature symmetrical solid oxide fuel cells through surface modification

et al. 2016

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“…This effect is benecial in terms of GHG control/chemical coproduction, and has been rarely reported in hydrocarbon fueled SOFCs. [50][51][52] In fact, both the C-SOFC and TA-SOFC were employed with oxygen-conducting electrolytes. Theoretically, O 2À can readily oxidize both CO and H 2 when the SOFC is biased.…”

Section: Designing Sofcs With a Triple Anode Layer For The Edrm Processmentioning

confidence: 99%

Toward highly efficient in situ dry reforming of H₂S contaminated methane in solid oxide fuel cells via incorporating a coke/sulfur resistant bimetallic catalyst layer

Hua

Yan

et al. 2016

J. Mater. Chem. A

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“…These processes are usually conducted by exposing the catalysts to certain atmosphere for some time at some prescribed temperatures. Ni catalysts are probably among the most commonly used due to their effectiveness and low costs, they are versatile and have been used in numerous reactions . One of the reactions is dry reforming of methane (DRM), in which two greenhouse gases (CH 4 and CO 2 ) are converted to valuable syngas (H 2 and CO) .…”

Section: Introductionmentioning

confidence: 99%

Controlling the Reduction Extent for Metal Catalysts

Cheng

Ren

et al. 2019

ChemistrySelect

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Metal catalysts have been used extensively in addressing energy and environmental issues. A reduction process is often needed to activate these catalysts. However, there is a lack of techniques to accurately control this process, thus the chemical composition of the catalysts is usually unclear. Ni‐based catalysts are among the most commonly used due to their effectiveness and low costs. In this work, we use the reduction of a Ni/Al2O3 catalyst used in dry reforming of methane to demonstrate a novel technique that well controls the reduction extent of metal catalysts. We achieve this goal by using IR spectroscopy to monitor and quantify the reduction product, H2O, in the process. Specifically, we measure a full and a partial H2O production kinetics, and subsequently develop an algorithm to control the reduction extent of the Ni catalyst in a wide range. This algorithm is proved effective. The technique can be applied generally to any pretreatment process that involves IR measurable gases and its wide application would greatly promote the fundamental catalyst structure‐performance investigation.

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Novel layered solid oxide fuel cells with multiple-twinned Ni_0.8Co_0.2 nanoparticles: the key to thermally independent CO₂ utilization and power-chemical cogeneration

Abstract: To energy-efficiently offset our carbon footprint, we developed a layered H-SOFC with multiple-twinned Ni0.8Co0.2 nanoparticles, achieving three milestones: CO2 utilization, electricity generation and syngas production.

Cited by 117 publications

References 43 publications

Tuning layer-structured La_0.6Sr_1.4MnO_4+δ into a promising electrode for intermediate-temperature symmetrical solid oxide fuel cells through surface modification

Tuning layer-structured La_0.6Sr_1.4MnO_4+δ into a promising electrode for intermediate-temperature symmetrical solid oxide fuel cells through surface modification

Toward highly efficient in situ dry reforming of H₂S contaminated methane in solid oxide fuel cells via incorporating a coke/sulfur resistant bimetallic catalyst layer

Controlling the Reduction Extent for Metal Catalysts

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Novel layered solid oxide fuel cells with multiple-twinned Ni0.8Co0.2 nanoparticles: the key to thermally independent CO2 utilization and power-chemical cogeneration

Abstract: To energy-efficiently offset our carbon footprint, we developed a layered H-SOFC with multiple-twinned Ni0.8Co0.2 nanoparticles, achieving three milestones: CO2 utilization, electricity generation and syngas production.

Cited by 117 publications

References 43 publications

Tuning layer-structured La0.6Sr1.4MnO4+δ into a promising electrode for intermediate-temperature symmetrical solid oxide fuel cells through surface modification

Tuning layer-structured La0.6Sr1.4MnO4+δ into a promising electrode for intermediate-temperature symmetrical solid oxide fuel cells through surface modification

Toward highly efficient in situ dry reforming of H2S contaminated methane in solid oxide fuel cells via incorporating a coke/sulfur resistant bimetallic catalyst layer

Controlling the Reduction Extent for Metal Catalysts

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Novel layered solid oxide fuel cells with multiple-twinned Ni_0.8Co_0.2 nanoparticles: the key to thermally independent CO₂ utilization and power-chemical cogeneration

Tuning layer-structured La_0.6Sr_1.4MnO_4+δ into a promising electrode for intermediate-temperature symmetrical solid oxide fuel cells through surface modification

Tuning layer-structured La_0.6Sr_1.4MnO_4+δ into a promising electrode for intermediate-temperature symmetrical solid oxide fuel cells through surface modification

Toward highly efficient in situ dry reforming of H₂S contaminated methane in solid oxide fuel cells via incorporating a coke/sulfur resistant bimetallic catalyst layer